* {
  margin: 0;
  padding: 0;
  font-size: 14px;
  font-family: 微软雅黑;
  list-style: none;
}
a {
  text-decoration: none;
  color: black;
}
li {
  list-style: none;
}
body {
  background: #f5f5f5;
}
i {
  font-style: normal;
}
